Personal computing discussed

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by Ditiris
Fri Jul 01, 2016 7:53 am
Forum: The Back Porch
Topic: Tesla autopilot tragedy
Replies: 156
Views: 8482

Re: Tesla autopilot tragedy

I hate corporations so much. The bit about the tragic loss of life belongs ahead of the PR/lawyer CYA. I was surprised that this could happen. I immediately thought to myself, wait, they're not using LIDAR or IR? A vehicle moving perpendicular to radar has a doppler signature at 0m/s, in effect look...
by Ditiris
Thu Jun 23, 2016 12:21 pm
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

curtisb wrote:
I was just in the process of resizing and uploading the images. It looks like you probably could put them in the slots closest to the power supplies.


Awesome, thanks. Looks like that would work. That riser at the end of your tape measure is also removable, right?
by Ditiris
Thu Jun 23, 2016 10:50 am
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

Mmm, Dell rep just called and said both the R730 and T630 only support 4.2" PCIe card form factor. Dang it.

curtisb, can you confirm or deny?
by Ditiris
Thu Jun 23, 2016 9:40 am
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

Sorry, but the application is proprietary.
by Ditiris
Thu Jun 23, 2016 7:20 am
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

Forgot one: Mixing RAM reads/writes isn't an issue. We'll record one way into RAM for each test event (all writes), then "trickle" out to SSDs in the server after the test event. So we should have excellent bandwidth utilization on the RAM. The bottleneck should be the PCIe3x8 link.
by Ditiris
Thu Jun 23, 2016 7:15 am
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

To answer some more questions in no particular order... Our Dell contact had the same answer on the riser card for the R730. He's checking with engineering to make sure the non-compliant 6.5" height of the FPGA card will fit. There should only be the one FPGA expansion card, so overheating bett...
by Ditiris
Wed Jun 22, 2016 1:25 pm
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

Infiniband is the only affordable option if splitting up between multiple hosts. 100 Gbps EDR is cheaper than 10/40 Gbps Ethernet much of the time! To be clear the QSFP28 connectors are on the Xilinx PCIe cards and are purely for data recording. There's no need to tie the machines together at all. ...
by Ditiris
Wed Jun 22, 2016 1:17 pm
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

It's not consumer hardware, but you should be able to do it with an X99 motherboard and 2 of these monsters: Would love to, but can't buy. Dare I ask what OS? Don't care. Probably WS12R2, but RedHat would be fine if the hardware support is there. That's exactly the server that I would recommend. Th...
by Ditiris
Wed Jun 22, 2016 11:07 am
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Re: Fastest Sequential Write on Consumer Hardware

Thanks everyone for all the responses. I think based on everything I've heard the way to go is use two servers with RAM disks. I may have limited the scope of the discussion too much by restricting answers to consumer-grade hardware. Basically I don't want to get into prohibitively expensive enterpr...
by Ditiris
Tue Jun 21, 2016 9:36 pm
Forum: Storage
Topic: Fastest Sequential Write on Consumer Hardware
Replies: 51
Views: 5577

Fastest Sequential Write on Consumer Hardware

What's the fastest sequential write speed I can achieve using consumer-grade hardware? I have a project where I want to write sequential data at a sustained ~15GB/s (gigabytes per second) from FPGA(s) connected to one or more PCs using PCIe 3.0 x8. I want to use consumer hardware as much as possible...
by Ditiris
Mon Jan 26, 2015 2:57 pm
Forum: The Back Porch
Topic: Protection of Employee Information
Replies: 8
Views: 769

Re: Protection of Employee Information

Huh, apparently I needed to look to Texas Common Law...
by Ditiris
Mon Jan 26, 2015 2:54 pm
Forum: The Back Porch
Topic: Protection of Employee Information
Replies: 8
Views: 769

Re: Protection of Employee Information

I am an employee, not the employer. I was mostly upset that all of my information was exposed to any employee of the company. Oddly, this does not appear to be illegal. Texas, like most states, only seems to regulate disclosure of information for/by government agencies and financial institutions. Pr...
by Ditiris
Mon Jan 26, 2015 1:59 pm
Forum: The Back Porch
Topic: Protection of Employee Information
Replies: 8
Views: 769

Protection of Employee Information

Can anyone point me to (preferably common-language) relevant privacy laws on employer responsibility protecting employee information? I have now found several instances on a shared network drive at work of confidential employee information, including SSN, credit card numbers, addresses, driver's lic...
by Ditiris
Tue Sep 16, 2014 8:04 am
Forum: The Back Porch
Topic: What are you READING right now?
Replies: 441
Views: 119698

Re: What are you READING right now?

I'm reading through the list of Hugo/Nebula joint winners . Just finished Dreamsnake and Paladin of Souls , currently on The Fountains of Paradise . I started reading the list because of Ender's Game . The books so far have all been tremendous. They're obviously all well-written, but there's been at...
by Ditiris
Thu Aug 21, 2014 7:45 am
Forum: The Back Porch
Topic: Haiku contest entry thread
Replies: 365
Views: 16823

Re: Haiku contest entry thread

Switch fast transistors
Manifest our thoughts at speed
Advance world progress
by Ditiris
Sun Jan 05, 2014 6:02 pm
Forum: The Back Porch
Topic: Sci-fi Book Recommendations
Replies: 26
Views: 2948

Re: Sci-fi Book Recommendations

+1 for the Hugo/Nebula winners.

And I'll give an extra mention for
Ender's Game by Orson Scott Card,
which is on that list, and is my favorite sci-fi book.

Nothing is as good as Ender's Game, but up through Shadow of the Hegemon are decent reads.
by Ditiris
Wed Nov 20, 2013 10:00 am
Forum: Echo Vale
Topic: Car Audio Receiver
Replies: 1
Views: 1160

Car Audio Receiver

Anyone have any recommendations on a fancy-pants Android-compatible Car Audio receiver? I have a 2009 Nissan Altima, and i'm not particularly enamored with the receiver. The hands-free functionality for the blue-tooth works okay but it's slow and clunky and I have to enter every number manually. I a...
by Ditiris
Fri Jun 07, 2013 5:17 pm
Forum: Processors
Topic: I just Delidded a 4770K (and lived to tell the tale!)
Replies: 72
Views: 25242

Re: I just Delidded a 4770K!

Excellent! Glad to hear it didn't take the chip with it. You've got me a bit nervous now about installing the X60 though. I think I'll finally have enough time to put everything together tomorrow.
by Ditiris
Wed Jun 05, 2013 9:05 pm
Forum: Processors
Topic: I just Delidded a 4770K (and lived to tell the tale!)
Replies: 72
Views: 25242

Re: I just Delidded a 4770K!

Please keep us posted on your results, I'm sure everyone's interested in what kind of overclock you get, voltage required, and temperatures.
by Ditiris
Fri May 31, 2013 10:29 am
Forum: The Back Porch
Topic: Any Long Term Lotto Players
Replies: 28
Views: 3904

Re: Any Long Term Lotto Players

Add an Advance Directive along with your Last Will and Testament.

On financial matters, the only book I have read that makes mathematical sense (and I have read A LOT) is William Bernstein's The Four Pillars of Investing.
by Ditiris
Wed May 29, 2013 4:02 pm
Forum: System Builders Anonymous
Topic: First Time Builder-Requesting Assistance
Replies: 163
Views: 20958

Re: First Time Builder-Requesting Assistance

The AVX2/FMA enhancements and the possibility of extremely high overclocks have me pretty randy at this point.
by Ditiris
Mon May 27, 2013 5:51 pm
Forum: General Hardware
Topic: Looking for a computer desk
Replies: 35
Views: 13121

Re: Looking for a computer desk

Any advice as to the configuration of the Aeron chair? I see there are a few options and sizes to choose from. Get the adjustable arms, tilt limiter and seat angle. I prefer the posture fit to the lumbar support, ymmv. Most everything else is taste. Size it based on your, well, size. I have the bla...
by Ditiris
Mon May 27, 2013 8:50 am
Forum: General Hardware
Topic: Looking for a computer desk
Replies: 35
Views: 13121

Re: Looking for a computer desk

I'll put in another vote for the Galant. I bought all new furniture for my office about six months ago... Ikea wound up getting a lot of money. I was willing to spend a lot of money on a desk or build my own, but honestly I couldn't find or build anything better than the Galant (for my desires, whic...
by Ditiris
Thu Feb 14, 2013 11:41 am
Forum: Storage
Topic: HELP - External WD Elements
Replies: 9
Views: 2687

Re: HELP - External WD Elements

My condolences. As others have said, your drive is on its way out. No mechanical drive is perfect. Basically at the time they are manufactured they have some sectors on the disk that don't work. The drive has a list of these bad sectors, and simply doesn't put data there. On a healthy disk, this lis...
by Ditiris
Wed Feb 06, 2013 8:49 am
Forum: General Hardware
Topic: Cleaning hardware with vacuum could damage parts??
Replies: 23
Views: 3495

Re: Cleaning hardware with vacuum could damage parts??

Don't clean any actual electronics with a vacuum, unless it's an ESD-sensitive vacuum. Just use compressed air. You can use a vacuum on your case, fans, and heatsink with pretty much no risk. I don't know how you could possibly damage a fan with a vacuum unless you had the world's strongest vacuum o...
by Ditiris
Wed Apr 20, 2011 12:54 pm
Forum: Mobile Tech
Topic: Kindle to Work with Libraries
Replies: 2
Views: 602

Re: Kindle to Work with Libraries

Good news indeed for Kindle owners. Now all we have to do is wait until the policy is changed "later this year," and for them to implement the feature to borrow the actual books. Still, it's a step in the right direction.
by Ditiris
Fri Jul 10, 2009 11:17 am
Forum: Visual Haven
Topic: 22 inch monitor or 32 inch HDTV
Replies: 5
Views: 3520

Re: 22 inch monitor or 32 inch HDTV

I would say get a 32" HDTV, but make sure it's 1080p (1920x1080). If it's not 1080p, the resolution will be unbearable when you're using it as a PC (at least it would be for me). In fact, I would say go to a store and bring a laptop or borrow someone's laptop, or ask them to set one up, and loo...